The California Office of Environmental Health Hazard Assessment (OEHHA) is considering a new package of amendments to the California Proposition 65 regulations. The California Proposition 65 Omnibus 2026 is currently at the pre-rulemaking stage, meaning the proposals do not yet create new binding requirements for companies.
California Proposition 65 Omnibus 2026: potential regulatory changes
OEHHA announced the Proposition 65 Omnibus 2026 Pre-Rulemaking on July 1, 2026, and subsequently published draft regulatory language. The agency held an in-person and online workshop on July 30, 2026 to discuss the potential amendments.
The draft covers several areas of the Proposition 65 regulations. Among the proposed changes are amendments concerning the treatment of naturally occurring listed chemicals in food and changes to warning requirements for specific types of exposures and businesses. These proposals could affect how companies assess whether an exposure falls within an exemption and how compliant warnings must be provided.
OEHHA is accepting comments on the draft regulatory language through September 7, 2026. As this is a pre-rulemaking process, the draft may still change before OEHHA initiates a formal regulatory procedure.
What the Prop 65 proposals mean for companies
For companies selling products in California, the Omnibus 2026 initiative should currently be treated as an early regulatory signal rather than a new compliance obligation. Businesses potentially affected by the proposed changes should nevertheless review the draft and assess whether existing product evaluations, warning processes or documentation could be affected if the amendments advance.
This is particularly relevant for companies handling food products or relying on provisions concerning naturally occurring chemicals, as well as businesses subject to Proposition 65 warning requirements. More background on the regulation, its scope and existing warning obligations is available in our California Proposition 65 guide.
Preparing for potential California Proposition 65 changes
At this early stage, companies can focus on monitoring the rulemaking process and maintaining reliable substance and product data. This provides a basis for assessing future changes efficiently if OEHHA proceeds with formal amendments.
IPOINT Compliance supports companies in managing product and material compliance information across complex supply chains, including regulatory requirements such as California Proposition 65. Structured compliance data can help organizations evaluate regulatory changes and identify potentially affected products and materials.
